It is given that the amount he paod for the boutique is $2,954.10 for 12 similar dresses and 7 similar blouses.
The amount of all the dresses cost is $2,376.60.
Let the cost of blouse be x.
Then the equation formed is
(2376.60)+7x=2954.10
The cost of each blouse cost is 82.5 dollar.